Module 1 Review: Irrational and Rational Numbers

Front

What is a rational number?

Back

A rational number is any number that can be expressed as the quotient or fraction of two integers, where the denominator is not zero.

Front

What is an irrational number?

Back

An irrational number is a number that cannot be expressed as a simple fraction; it cannot be written as a ratio of two integers.

Front

Is the square root of 10 rational or irrational?

Back

Irrational

Front

Is the cube root of -8 rational or irrational?

Back

Rational

Front

What is a perfect square?

Back

A perfect square is a number that can be expressed as the square of an integer.

Front

Is 196 a perfect square?

Back

Yes, because 14 x 14 = 196.

Front

Is 1 a perfect square?

Back

Yes, because 1 x 1 = 1.

Front

What is the square root of 25?

Back

5, because 5 x 5 = 25.

Front

What is the square root of 16?

Back

4, because 4 x 4 = 16.

Front

What is the cube root of 27?

Back

3, because 3 x 3 x 3 = 27.